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    A global OClO stratospheric layer discovered in GOMOS stellar occultation measurements

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    Authors
    Fussen, D.
    Vanhellemont, F.
    Dodion, J.
    Bingen, C.
    Mateshvili, N.
    Daerden, F.
    Fonteyn, D.
    Errera, Q.
    Chabrillat, S.
    Kyrölä, E.
    Tamminen, J.
    Sofieva, V.
    Hauchecome, A.
    Dalaudier, F.
    Bertaux, J.-L.
    Renard, J.-B.
    Fraisse, R.
    D'Andon, O.F.
    Barrot, G.
    Guirlet, M.
    Mangin, A.
    Fehr, T.
    Snoeij, P.
    Saavedra, L.
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    Discipline
    Earth and related Environmental sciences
    Subject
    Bromine compounds
    Catalysis
    Chlorine compounds
    Ozone layer
    Spectrometers
    Catalytic cycles
    Halogen activation
    Reactive chlorine
    Stellar occultation spectrometer GOMOS
    Upper atmosphere
    boundary layer
    bromine
    catalysis
    chlorine
    global climate
    halogen
    measurement method
    ozone depletion
    polar region
    polar vortex
    stratosphere
    Audience
    Scientific
    Date
    2006
    Metadata
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    Description
    The stratospheric ozone depletion observed in polar regions is caused by several catalytic cycles induced by reactive chlorine and bromine species. By reacting with BrO, ClO causes the formation of OClO which is considered as a proxy of the halogen activation. We present the first global determination of the stratospheric OClO distribution measured during the year 2003 by the stellar occultation spectrometer GOMOS. Besides its expected polar abundance, we discovered the presence of a worldwide OClO layer in the upper stratosphere. At lower altitudes, OClO seems also to be present beyond the limit of the polar vortices, an unreported feature.
    Citation
    Fussen, D.; Vanhellemont, F.; Dodion, J.; Bingen, C.; Mateshvili, N.; Daerden, F.; Fonteyn, D.; Errera, Q.; Chabrillat, S.; Kyrölä, E.; Tamminen, J.; Sofieva, V.; Hauchecome, A.; Dalaudier, F.; Bertaux, J.-L.; Renard, J.-B.; Fraisse, R.; D'Andon, O.F.; Barrot, G.; Guirlet, M.; Mangin, A.; Fehr, T.; Snoeij, P.; Saavedra, L. (2006). A global OClO stratospheric layer discovered in GOMOS stellar occultation measurements. , Geophysical Research Letters, Vol. 33, Issue 13, L13815, DOI: 10.1029/2006GL026406.
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/4492
    doi: http://dx.doi.org/10.1029/2006GL026406
    scopus: 2-s2.0-33845651668
    Type
    Article
    Peer-Review
    Yes
    Language
    eng
    Links
    NewsHelpdeskBELSPO OA Policy

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